Comparative Study of Experiment And Les on Street Canyon Dynamics

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388998%3A_____%2F14%3A00427473" target="_blank" >RIV/61388998:_____/14:00427473 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Comparative Study of Experiment And Les on Street Canyon Dynamics
Original language description
The paper deals with comparison between experimental data and numerical simulation concerning street canyon dynamics. Experimental data was obtained in the wind channel with Time-Resolved Particle Image Velocimetry (TR-PIV). By PIV, two components of velocity were measured in vertical plane at the axis of the channel. The almost identical boundary conditions were simulated by LES. The wind dynamics inside the street canyon was captured and then analysed by Fourier analysis, Wavelet analysis, Quadrant Reynolds decomposition, spatial and temporal correlation and Proper orthogonal decomposition (POD). These methods were consequently used for the mutual comparison between LES and experimental data was done. Some discrepancies were revealed in the time-meanvalues between LES and PIV. However the spectrum, momentum flux and especially POD yielded very similar results what suggests that dynamics in terms of variance was properly modelled by LES.
Czech name
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Czech description
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Project
<a href="/en/project/GAP101%2F12%2F1554" target="_blank" >GAP101/12/1554: Experimental study of organised structures in turbulent boundary layer above rough surface with obstacles</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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